A system consists of two components. P(the 1st component functions in satisfactory manner during its design life)=0.75, P(at least one of the two components functions in satisfactory manner during its design life)=0.86, and P(both component functions in satisfactory manner during its design life)=0.65. given that the second component functions in a satisfactory manner throughout its design life, What is the probability that the first one does also?
We have
P(the 1st component functions in satisfactory manner during its design life)=0.75
P(both component functions in satisfactory manner during its design life)=0.65.
We asked the conditional probability that second component functions in a satisfactory manner throughout its design life, What is the probability that the first one does also
P ( 1st component functions in a satisfactory /2nd component functions in a satisfactory manner)
= P( both components function in satisfactory manner)/P( 2 nd component function in a satisfactory manner)
= 0.65/0.75
= 0.8667
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